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  Mains monitoring relay  (38,717 offers of 6,262,324 product items)

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Releco Plug In Latching Power Relay, 12V dc Coil, 10A Switching Current, DPDT / 350377 (1 offer) 
Coil Voltage = 12V dc Contact Configuration = DPDT Mounting Type = Plug In Switching Current = 10A Latching = Yes Terminal Type = Through Hole Maximum Switching Voltage AC = 250V ac Maximum Switchi...
Comat Releco
C3-R20 / DC 12 V
£ 39.273*
per piece
 
 piece
RS PRO Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2237791 (1 offer) 
RS PRO Phase Monitoring RelaysRS PRO is proud to present a complete range of phase monitoring relays designed for 3 phase systems. Each monitor relay is packed with excellent features to ensure eff...
RS Pro
2237791
£ 109.095*
per piece
 
 piece
RS PRO Green 0.5mm² Hook Up Wire, 22 AWG, 16/0.2 mm, 100m, PVC TI3 Insulation / 1805967 (1 offer) 
RS PRO Tri-Rated 0.5mm Cable 100m. Our RS Pro tri-rated cable has been designed to be used within electrical equipment, most commonly for wiring items that include power switchgear. The cable is al...
RS Pro
1805967
£ 29.372*
per 100 metres
 
 reel
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail, Surface Mount / 2257388 (1 offer) 
RS PRO 3-Phase Failure Sequence & Under-Voltage Relay The RS PRO 3-Phase voltage monitoring relay is used for connecting to a 3-wire or 4-wire supply. The relay is designed to monitor its own suppl...
RS Pro
2257388
£ 107.778*
per piece
 
 piece
Releco Plug In Latching Power Relay, 24V ac Coil, 5A Switching Current, DPDT / 2130800 (1 offer) 
5A DPCO Latching - C9 Series. Relays have a test button and mechanical flag indicator fitted as standard. The test button is colour coded and dual function, push to test or lift to latch. A removab...
Comat Releco
C9-R21 / AC 24 V
£ 38.56*
per piece
 
 piece
RS PRO PID Temperature Controller, 96 x 96mm 1 Input, 2 Output Relay, SSR, 230 V ac Supply Voltage / 1885162 (1 offer) 
Temperature Controllers
RS Pro
1885162
£ 235.275*
per piece
 
 piece
RS PRO Green 0.75mm² Hook Up Wire, 20 AWG, 24/0.2 mm, 100m, PVC TI3 Insulation / 1805968 (1 offer) 
RS PRO Tri-Rated 0.75mm Cable 100m. Our RS Pro tri-rated cable has been designed to be used within electrical equipment, most commonly for wiring items that include power switchgear. The cable is a...
RS Pro
1805968
£ 40.733*
per 100 metres
 
 reel
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2237788 (1 offer) 
RS PRO Digital Voltage Monitoring RelaysRS PRO is proud to present a complete range of control monitoring relays designed for single-phase or 3 phase systems. Each relay is packed with excellent fe...
RS Pro
2237788
£ 113.154*
per piece
 
 piece
Releco Plug In Power Relay, 115V ac Coil, 10A Switching Current, DPDT / 345937 (1 offer) 
10A Plug-In Relays (8 or 11 Pin). Dual function, colour coded test button push to test or lift to latch Mechanical flag indicator and coil LED as standard Operating Temperature Range -20 to +60°C C...
Comat Releco
C2-A20X / AC 115V
£ 22.844*
per piece
 
 piece
RS PRO PID Temperature Controller, 96 x 96mm 1 Input, 2 Output Relay, SSR, 24 V ac Supply Voltage / 1885165 (1 offer) 
RS PRO 18
RS Pro
1885165
£ 145.685*
per piece
 
 piece
RS PRO Green/Yellow 1.5mm² Hook Up Wire, 16 AWG, 30/0.25 mm Nominal, 100m, PVC TI3 Insulation / 1805955 (1 offer) 
RS PRO Tri-Rated 1.5mm Cable 100m. Our RS Pro tri-rated cable has been designed to be used within electrical equipment, most commonly for wiring items that include power switchgear. The cable is al...
RS Pro
1805955
£ 63.175*
per 100 metres
 
 reel
RS PRO PID Temperature Controller, 72 x 72mm 1 Input, 2 Output Relay, SSR, 230 V ac Supply Voltage / 1885160 (1 offer) 
RS PRO Temperature ControllerThe RS PRO PID temperature controller has a j type thermocouple input and 2 relay SSR output. It has a 4 digit display and the controller size is of 72 x 72mm. It works...
RS Pro
1885160
£ 298.795*
per piece
 
 piece
Releco Plug In Power Relay, 12V dc Coil, 10A Switching Current, DPDT / 345870 (1 offer) 
10A Plug-In Relays (8 or 11 Pin). Dual function, colour coded test button push to test or lift to latch Mechanical flag indicator and coil LED as standard Operating Temperature Range -20 to +60°C C...
Comat Releco
C2-A20X / DC 12V
£ 22.69*
per piece
 
 piece
RS PRO Pink 2.5mm² Hook Up Wire, 14 AWG, 50/0.25 mm, 100m, PVC TI3 Insulation / 1805966 (1 offer) 
RS PRO Tri-Rated 2.5mm Cable 100m. Our RS Pro tri-rated cable has been designed to be used within electrical equipment, most commonly for wiring items that include power switchgear. The cable is al...
RS Pro
1805966
£ 106.145*
per 100 metres
 
 reel
RS PRO Grey 1.5mm² Hook Up Wire, 16 AWG, 30/0.25 mm, 100m, PVC TI3 Insulation / 1805953 (1 offer) 
RS PRO Tri-Rated 1.5mm Cable 100m. Our RS Pro tri-rated cable has been designed to be used within electrical equipment, most commonly for wiring items that include power switchgear. The cable is al...
RS Pro
1805953
£ 63.345*
per 100 metres
 
 reel
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